QGIS Twisting a Shapefile

Question

I have a georeferenced raster in QGIS and a shapefile of the same area. Both files are in the same projection, but they do have different extents. For some reason on the left side the shapefile features have been shifted up and on the right, down. The shift is scaled from the center (center is lined up perfectly). Is there a way that I can twist my shapefile based the center point of the file, or a point that I pick? Or could I georeference my shapefile to my raster?

Right Side

Left Side

Center

georeferencing qgis shapefile

Right Side

Left Side

Center

James B · Accepted Answer

You can just select everything in edit mode and use the rotate tool in the Advanced Digitizing Toolbox but the rotation point will be fixed to the centre of the selection.

If you need a specified anchor point then use the Rotate tool under Vector Geometry>Rotate in the processing toolbox.

For more advanced vector geo-referencing the Vector Bender plugin (https://github.com/olivierdalang/VectorBender) works in v3 of QGIS - sounds like you already know of this one though?

Cauan Araújo · Answer

I had the same problem. Vector bender don't work for me, in QGIS 3.10.
I solved with SAGA Warping Shapes (acessible on processing painel). Its work well with Affine method.
http://www.saga-gis.org/saga_tool_doc/2.2.5/pj_georeference_2.html

QGIS Twisting a Shapefile

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